Oil-burning furnace.



PATENTED AUG. '7, 1906.

H. YOERG 6L J. TREAGY.

OIL BURNING PURNACE.

APPLIOATIQN HLBD JULY31 2 SHEETS-SHEET 1.

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. PATENTBD AUG. 7, 1906. Hl YOERG & J. TREACY. UIL BURNING FURNAGELf PLIUATION FILED JULY a1, 1905.

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Specification of Letters Patent.

Patent'eanug. 7,1906.

Application filed July 31, 1905. Serial No. 271.948.

.To al whom, if may concern: Be it knowthat we, HENRY YOERG and `JOHN TREN of St. Paul, Ramsey county, 'Minnesota, have invented certain new and ',5useful Improvements in Oil --Burning Fur-f neces, of which the following is a 'specification.l

Tlfn ciiect of` our invention is to provide for a more complete,A combustion of the oil xc `{,{hal usually takes place in a furnace vof this 1n Y A-further object is to provide means for utilizing all the heat and prevent it from escaping prematurely. Y A further object is to effect a considerable saving in the consumption of oil and reducing the time usually required for heating the materialinthe furnace.

A further object is to provide a furnace zo' which will be very eflicient, using a mini- .mum of oil to obtain a maximum of heat; and a' still further Objectis to provide a furnace of simple and economical construction and 4 `one in which all arts of the furnace, and par- 25, ticularlyfthe oill burner, are.. exposed and easily accessible.

Theinvention consists generally in providing a furnace with a vertical combustionchamber having al centrallyarranged oil- 3o burner vand a triple air-blast, one entering the lower part of the combustion-chamber below the burner and another being located aboveA the burner opposite the passage to a horizonf tal heating-c amber, and the third inclosing Further,l the invention consists inv various constructions and combinations, all as hereinafter described, and particularly' pointed 1 out in the claims. r 4o. In the accompanying drawings, forming part of this specification, Figure 1 is a vertical longitudinal section of a furnace embodying our invention.

' of the same.` Fig. 3 isa transverse vertical section. Fig. 4 is a side elevation ofthe heating-chamber, showing the opening therein through which the articles to be heated are.

inserted into the chamber. v

In the drawings, 2 represents a lsuitable 5o casing having legs 3 and 4 and alining 5 of fire-brick or other .refractory material. In

one end of the casing a vertical combustion- "\chamber 6 is formed, communicating near its y upper end with a horizontal heating-chamf ber 7 -The combustion-chamber -h'as a tapered lower end 8 communicatingl with a Fig. 2 is an end elevation horizontal pipe 9, through whichy an air-blast is mtroduced'into the c'har'nb'e'r.,v Above the pipe 9 and near the middle of thecombustion-chamber is an opening 10 inthe walllof sald chamber, and oppositev said opening on the outside is a pipe 11, kinclosingy an oilt burner 12, connected byva pipe 13 with a supply of oil under compression.; The` oilv `is sprayed through. this burner into the, combustion-chamber and against'ithe'wallof said chamber opposite the opening. 10 and'is in-,

closed by the air-blast discharged :from the pipe 11. An o ening 14is provided inthe wall of the. com risticii-chamber on substantially the same level as the oil-burner` to allow access to said chamber for the purpose of'igniting the oil. An opening 15 lis provided in the wall of the combustion-chamber above the opening l0, and a pipe 16 isarranged o posite said opening 15and inline with t e throat 17 of the heating-chamber?. ',An,ai r

the combustionchamber `and [directs .the flameA into the heating,- chalnib'eig` 'supplying oxygen to com lete combustion atthat point blast is discharged through thepipe linto and insuring t Le projectiomofthe flamefthe4 entire length of the heating-,Chamber.k Acentral longitudinal depression 18 isf provided in the heating-chamber, and an opening 19 is formed in the wall of` said chamber and the casing 2 on one side to alloysT thefin'sfertion yof the material to be heated ,into .'theffurna'ce," and opposite the openinglnear the middle' of the heating-chamber adraftyiue [2O isprovided'to draw the flames away 'from the side' of the -furnace on which .the o erator is standy ing. A flue 21 is also provi ed nearthe end of the horizontal heating-.7.chamber.k

In the operation of theffurnace the oil is sprayed. through the burner 12 into the combustion-chamber, and striking the opposite wall of the chamber will fly back in afine s ray, and being ignited will befdirectedby t e blast from the bottom ofthefcombustionchamber to the upper part of said chamber, and being'thoroug ly mingled withthe airblast discharged from thepipe inclosingthe burner and also from the pipe ,at ythefbottom of the combustion-chamber an almost complete combustion of the oil will take place. As the fiames ascend to the u per part of the combustion-chamber they wiH meet the blast of air from the pipe 16 and be directed into the throat of the heating-chamber. The airblast from the pipe 16 will mingle with the burning oil and insure thecomplete combus- TOO IIO

tion of the same before entering the heatingchamber and produce a clear white llame of intense heat within the heating-chamber. The oil-burner and the air-blast pipes being located outside the combustion-chamber are exposed and easily accessible for the purpose of cleaning or repairs. The burner inclosed by the blast-pipe 11 will act as an atomizer and deliver the oil to the combustion-chamber in a vaporized form or as a very fine spray and insure the rapid mingling of the oil with the air and a practically .complete conibustion.

XVe claim as our invention- 1. A furnace having a vertical combustionchamber and a horizontal heating-chamber communicating therewith, an air-blast communicating with the lower end of said combustion-chamber., an oil-burner connected with a supply ofoil under pressure and adapted to project it into said combustion-chamber above said air-blast, a second air-blast communicating with the upper part of said combustion-chamber above said oil-burner and opposite the passage leading tosaid heating-,chamber and adapted to project the flame horizontally through said heatingchamber substantially as described.

2. A furnace having a vertical combustionchamber and a ,horizontal heating-chamber communicating therewith, an air-blast v`pipe communicating with .the lower vend of said combustion-chamber, anoil-burner connected with a supplyof oilunderpressul'e and arranged to project the oil in a fine spray into andagainst the lwall fof said chamber above said blast-pipe, an air-blast .pipe inclosing said vburner-and arranged to project a lblast of air into said chamber to mingle with the oil from said burner, and a :third blast-.pipe communicating Withthe up er ,part ofsaid y.chamber .and ron substantiay :the same level .as said heating-chanrber-and,adapted te reject the .ila-me of the .burning .oil into and through. said heating-chamber, substantially asl .described. a

3. An oil-burning furnace comprising a vcrtical combustion-chamber'having openings inits sidewalls one aboveanothcr, one of said openings being near the middleof said combustion-chamber and theother near the top of the same, a horizontal heating-chambercommunicatingwith the upper part of said combustion-chamber vopposite the upper opening therein, an .air-blast .pipe communicating with the lower portion of said combustion-chamber, an oil-burner communicating seaoei with a source of oil under pressure and arranged opposite the o ening near the middle of said combustion-c iamber to `project and spray the oil tl.erethrougl1, and a blast-pipe arranged opposite the upper opening in said combustion-chamber and opposite the throat of said heating-chamber and adapted to project a blast of air into'said combustion-chamber to mingle with the burning oil and direct the flame into 4and through said heatingchamber. y i

4,. An oil-burning furnace having a vertical combustion-chamber provided withopenings in its side 'walls one above another, on .opening being near the middle of said combustion.- chamber and the other near the top of 4the same, a horizontal heating-chamber communicating with the upper portion of Said oombustion-chamber, a blast-pipe leading into the lower part of said com ustion-chamber, an oil-burner located outside of said combustion-chamber opposite the opening near the.

middle thereof and communicating with a supply of oil under pressure, a blast-pipe inclosing said burner and also located outside of said chamber, and a third blast-pipe .also

located outside of said chamber and-arranged opposite the opening in the upper wall thereof and adapted'to direct a blast of air into the upper part of said chamber to mingle with the burning oil and complete combustion `thereofandfdirect the llame into and through said heating-chamber.

5. An .oil-burning yfurnace comprising :a suitable casing and a lining of .refractory ,material therefor, said casing .h avingjan upright combustion-chamber in one end thereof provided. with a substantially conical loweriend, a blast-pipe communicating with saidvconical end, an oil-burner commruricating with a supply of oil under pressure and adapted .to

.project the oil in .a fine spray into said vchamber, an air-blast -pipe inclosing said burner, -a third `air-blast pipe communicating with the upper part of said combustion-chamber, and a horizontal heating-chamber also.comml.lznieating with the upper part lof said combustion-chamber opposite said I third air-blast pipe, substantially as'described.

In witness whereof we Ihave .hereunto set ou-r lhands this 26th `day of July, 1905.

HENRY YGERG. .JOHN TREACY..

lVitnesses:

RICHARD PAUL` C. MACNAMARA.

IOO 

